Cleansing fluid



Patented July 30, 1940 UNITED STATES CLEANSING FLUID Cyrus E. Manierre, Chicago, Ill.

No Drawing.

Application April 30, 1938,

Serial No. 205,195

4 Claims.

unsuited for use where the cleanser is designed to be dispersed rapidly in relatively large quantities of water, as in household washing and laundering. This is .because the soap formed-by the reaction between triethanolamine and the fatty acids used in such compositions is, under the circumstances above outlined, precipitated as a solid fatty mass. Complete dispersion of such compositions can only be obtained by adding water gradually and stirring. Moreover, such compositions being in the form of emulsions, are likely to settle or separate prior to the time they are required for use.

It is a particular object, therefore, of the present invention to provide a household cleanser in which certain petroleum solvents are incorporated in a composition which is not an emulsion but which is readily miscible with water in order to form an emulsion, even if added quickly to relatively large quantities of water. This result is obtained with complete initial dispersion of the oil base or solvent in water, without separation of the oil phase.

Another object of the invention is to provide a cleansing composition that 'acts as a solvent for fats and greases.

Another object is to produce a cleanser which Q 40 can be'manufactured with economy in that it is adapted to utilize certain intermediate petroleum distillates that are relatively non-volatile and for which there is little commercial demand. A further object isto produce a cleanser containing a solvent for fats and greases that has a sufficiently high flash point that it may be used in the ordinary household without danger of fire or explosion.

Other objects are to provide a washing com- 5 position which has the advantages hereinafter more fully described.

The novel washing composition of the invention consists in general of a cleansing, non-explosive petroleum solvent, a dispersing agent and 5 an emulsion stabilizer. More particularly, the

invention consists in incorporating such. dispersing agent and stabilizer with a'solvent of the general class of turpentine substitutes having a flash point above 105 F., an initial boiling point not less than 300 F. and an end point between 5 350 F. and 450 F. I have found that the petroleum fraction sold under the trade name Sovasol No. 5 is eminently satisfactory as such a solvent, although I have found that other cleansing, nonexplosive solvents, as aromatic and cyclic hydrol0 carbons such as tetrahydronaphthalene, may be used, either alone or in intermixture. The solvent content may vary between and of the final product.

The dispersing agent is preferably one -or a 5 mixture of neutral sulfonated fatty vegetable oils such as sulfonated castor oil, olive oil or teaseed oil, or animal oils such as sulfonated neatsfoot oil. In amount, the dispersing agent should be from 5% to 15% of the petroleum solvent. 20

However, the sulfonated oil may under certain circumstances be replaced in whole or in part by neutral soaps, preferably potash soaps of low-titer fatty acids such as oleic acid. When soaps are used in the mix, however, monohydric, water- 25 soluble alcohols as ethyl or propyl alcohols should be used as additional stabilizers. The amount of such, alcohols will vary but should be approximately equal to the soap content.

The emulsion stabilizer is preferably a fatty 3O acid such as oleic acid. In amount it should not be less than 50% of the sulfonated oil, nor more than the sulfonated oil content. I

The following is a specific example of one formula that can be utilized efi'ectively in accord- 3r ance with the principles of the invention:

vSovasol No. 5 3500 CC. (86%) sulfonated castor oil -325 cc. 8%) Oleic acid 250 cc. 6%)

Compositions made according to the invention are stable and readily miscible with water so that they may be used either with or without soap in clothes launderingprocesses, or for general household washing purposes. They serve to take out grease or the like and if necessary may be used Without water. The flash points of the incorporated petroleum compositions are such. that the composition may be shipped and handled. substantially as a non-explosive, which makes it particularly desirable for use in commercial laundries.

What I claim is: r

1. A cleansing composition consisting of petroleum solvent 86% by volume, sulfonated castor 55.

oil 8% and oleic acid 6%, said solvent being one of the general'class of turpentine substitutes having a flash point above 105 R, an initial boiling point not less than 300 F. and an end point between 350 and 450 F.

2. A cleansing composition consisting of petroleum solvent 86% by volume, sulfonated oil 8% and oleic acid 6%, said solvent being one of the general class of turpentine substitutes-having a flash point above 105 R, an initial boiling 'point not less than 300- F., and an end point between 350 and 450 F., and said sulfonated oil being a neutral sulfonated oil selected from the group consisting of castor, olive, teaseed and neatsfoot oil.

3. A cleansing composition consisting of petroleum solvent 86% by volume, sulfonated oil 8% and a low titer fatty acid 6%, said solvent being one of the general class of turpentine substitutes having flash point above 105 R, an initial boilaaoavss ing point not less than 300 F., and an end point between 350 and 450 F., and said sulfonated oil being a neutral sulfonated oil selected from the group consisting of castor, olive, teaseed and neetsfoot oil.

4. A cleansing composition consisting of a petroleum solvent of the group consisting of turpentine substitutes having a flash point above 105 F., an initial boiling point not less than 300 F. and an end point between 350 and 450 F., a sulfonated oil selected from the group consisting of castor, oliv'e, teaseed and neatsfoot oil and oleic acid, said petroleum solvent comprising from 60% to 90% of the final composition, said sulfonated oil comp-rising 5% to 15% of the petroleum solvent and said acid comprising not less than 50% of nor more than the whole sulfonated oil content.

CYRUS E. MANIERRE. 20 

